Write down the role of Exocrine glands?

Write down the role of Exocrine glands?
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Exocrine glands release their secretions into ducts which in turn release them onto the surface of organs. Examples of exocrine glands are sweat glands, salivary glands, mammary glands, etc. The pancreas is both an exocrine as well as an endocrine gland. It secretes digestive enzymes that are released into the digestive system while it also contains the Islets of Langerhans which secrete insulin into the blood.
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